[Samba] Fail to join win2k clients into a domain where samba serves as a PDC

[Jianhong Gao]

Dear sirs(madams):
  I've just configured samba 2.2.2 on FreeBSD 4.5 to server as a windows NT PDC. The domain once worked well after configuration. But today, I suddently encountered with certain trouble, that I can't join any clients to the domain any more. Even those I've joined to the domain sucessfully other days can't be joined to the domain either after I removed them and tried to rejoin them. All the clients run win2k, and I've add the machine trust accounts mannually to the samba server. Things go like this:
  I logged in a win2k as administrator and configure the machine to join the intended domain. When asked to input the account and correspondent password having the authority to join the client to the domain, I input "root" and  the password. Then the the following error message appears in a messege box:
      The folling error occured attempting to join to domain "301IAN"!
      Access Denied!
  I don't know what's going wrong. I've once used the same root account to join 2 lients to the domain successfully, and both of them still worked well in the domain even after such trouble happened. How can I shoot this trouble?

Thanks in advance!
regards!
John
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